CA2018183A1 - Irrigation nozzle, particularly for large - diameter pipes - Google Patents
Irrigation nozzle, particularly for large - diameter pipesInfo
- Publication number
- CA2018183A1 CA2018183A1 CA002018183A CA2018183A CA2018183A1 CA 2018183 A1 CA2018183 A1 CA 2018183A1 CA 002018183 A CA002018183 A CA 002018183A CA 2018183 A CA2018183 A CA 2018183A CA 2018183 A1 CA2018183 A1 CA 2018183A1
- Authority
- CA
- Canada
- Prior art keywords
- sleeve
- internal
- liquid
- cap
- extremity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000002262 irrigation Effects 0.000 title claims abstract description 14
- 238000003973 irrigation Methods 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 101000973623 Homo sapiens Neuronal growth regulator 1 Proteins 0.000 description 2
- 102100022223 Neuronal growth regulator 1 Human genes 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- WFAULHLDTDDABL-UHFFFAOYSA-N Proxazole citrate Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O.C=1C=CC=CC=1C(CC)C1=NOC(CCN(CC)CC)=N1 WFAULHLDTDDABL-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/16—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets
- B05B1/1609—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a lift valve
Landscapes
- Nozzles (AREA)
Abstract
"Irrigation nozzle, particularly for large-diameter pipes".
* * * * *
A B S T R A C T
The nozzle comprises first means for the creation of a main jet having variable length and conformation and second means for the creation of a plurality of secondary jets, at reduced pressure, which surround the main jet. The first means comprise an internal tubular casing which can be supplied with a delivery liquid at one extremity and provided with radial openings for the outflow of the liquid at the other extremity and an external sleeve which can be screwed on and unscrewed from the internal casing to open and closed a central passage for the outflow of the liquid. The second means comprise a terminal wall of the sleeve provided with a plurality of circumferentially spaced holes over which there is rotatably superimposed a cap provided with a similar plurality of circumferentially spaced holes, which can be aligned or otherwise with the holes of the terminal wall of the sleeve for their opening or closing in relation to the angular position of the cap.
* * * * *
A B S T R A C T
The nozzle comprises first means for the creation of a main jet having variable length and conformation and second means for the creation of a plurality of secondary jets, at reduced pressure, which surround the main jet. The first means comprise an internal tubular casing which can be supplied with a delivery liquid at one extremity and provided with radial openings for the outflow of the liquid at the other extremity and an external sleeve which can be screwed on and unscrewed from the internal casing to open and closed a central passage for the outflow of the liquid. The second means comprise a terminal wall of the sleeve provided with a plurality of circumferentially spaced holes over which there is rotatably superimposed a cap provided with a similar plurality of circumferentially spaced holes, which can be aligned or otherwise with the holes of the terminal wall of the sleeve for their opening or closing in relation to the angular position of the cap.
Description
2rllsl~3 "Irrigation nozzle, particu~arly for Larqe-diameter pipes"
* * * * *
D E S C R I P T I Q N
The present invention relates to a noz~le, particu~arly for large-diameter pipes and thus a large ~ater de~ivery.
~ he use is kno~n of irrigation no2zles for normal ptpes having a diameter of half an inch up to a diameter equaL to three quarters of an inch.
Such nozzles are married at one extre~ity ~ith a union ~hich is in turn connected to the pipe at the other extremity.
Such coupling bet~een the nozzle and the union is generally made ~ith a quick-action coupling of a female part, in particular the union, ~ith a ~ale part, the nozzle.
Nozz~es of the kno~n type inc~ude an inner tubular casing ~hich can be supplied ~ith an irrigation li~uid as one extremity and provided ~ith radial openings for the outflo~ of the liquid at the other extremity, an externaL slee~c def;nin~
~ith said internal casing a delivery cha~ber of the ~iquid communtcating ~ith said cpenings and which can be scre~ed on and unscre~ed from the same 1n order to clsse and open in an adj~stab~e ~ay a c~ntra~ out~lo~ passage.
Such ~no~n solut1ons are not, ho~ever, suitab~e to be associated ~ith large-diameter feed p;pes and thus of large ~ater delivery. In such cases, ;ndeed, according to the position of the adjustment sleeve, either a very long water jet 2~-~181~3 is produc~d Jith ~hich it is possib~e to ~ater only a far point on ~hich the jet fa~s or a circular short-range fan-shaped jet is generated ~hich is characterized by a high out~et pressur~
which cannot but damage any plants or flo~ers to be irrigated.
The object o~ the present invention is that ~f accomplishing an irrigation nozzle ~hich is particularly suitable for use ~ith large-diameter pipes ~ithout giving rise to the above mentioned dra~backs According to the invention such object is attained by means of an irriga~ion nozzle, particularlr for large-diameter pipes, comprising first means for the creation o~ a ~ain iet having variable ~ength and conformation, said first means comprisin~ an interna~ tubul3r casing ~hich can be supplied ~ith an irrigation liquid at one extremity and provided ~ith radial openings for the ou~flou of the liquid at thê otner extre~ity and an external sleeve defining ~ith said internal casing a delivery chamber of the liquid communicating ~ith said openings and ~h~ch can be scre~ed on and unscre~ed fron the same to close and open 1n an adjustable ~ay a central outflo~
passage, characterized in that it aLso comprises sccont means for the creation of a plurality of secondary jets at reduced pressure round the c;rcum~erence ot said main jet said seccnd means comprising a termina~ ~a~ of said sLeeve provided ~ith a plurality of circumferentia~ly spaced ho~es and a cap rotatably superimposed over said termina~ ~a~ ot ~he slecve and in turn ~ ~18~3 provided ~ith a simiLar plurality ot c;rcumferentiaLLy spaced holes ~hich can be aligned or other~ise ~ith said holes of the terminaL ~all of the sleeve for their opening or closing, respectively, in reLation to the ang~Lar position of the cap It appears evident that in this ~ay the nozzle adds to the possibility of having a long lo~-pressure main jet or, as an alternative, a circular high-pressure jet in the shape of a fan as for the traditionaL nozzles, also that o~ produci~g in combination ~ith or as aLternative to said main jet a plurality of secondary low-pressure jets, even if the delivery is high, ~hich in the case of large-diameter pipes for~ an irrigation pattern having a comparatively limited force so as to avoid damage to plants and flo~ers to be irrigated It is thus possible to irrigàte at a distance ~hile, at ~he same time, also ~atering areas ~hich are nearer to the point of outfLo~ of the main jet or it is possibLe to provide for the possibility of ~atering ~;thout any damage extremely near areas such as flo~er-beds, etc The features of the present invent;on shall be made ~o~e 2D ev;dent by the foLlo~ing detailed descr;pt;on of a preterred embod;ment, illustrated as a non~ iting exa~pLe in the encLosed dra~ings, ~herein:
Fig~ 1 is a Lon~itudinaL cross-sectionaL v;c~ of the noz7le in the closed position, F;g. 2 sho~s the connect;on of the nozzLe of Fig. 1 ~;th a 2`~ 3 su;table quick-action union;
Fig. 3 sha~s a longitudinal cross-sectional vie~ of the nozzle applied to the union and adjusted to the open position;
Fig. 4 is a vie~ of the nozzle from the left hand side in the position of Fig. 3;
Fig S sha~s a detail in cross-section taken along the line V-V of Fig. 4;
Fig. 6 is a transversal cross-sectional vie~ of the nozzle taken a~ong the line VI-VI of Fig. 1;
Fig. 7 is a transversal cross-sec~ional vieu of the connection area of the nozzle to the union taken along the line VII-VII of Fig. 3;
Fig. 8 sho~s a detail of the connection area seen in a cross-sectional vie~ taken along the line VIII-VIII of Fig. 3.
With reference to the dra~ings, and in particular to Fig.s 1 and 3, the ;rrigation nozzle indicated as a ~hole ~ith 20 comprises an internal tubular casing 1 ~hich can be supplied ~;th an irr;gation liquid at one extremity 2 and provided ~ith radial openings 3 for the outflou of the liquid at the other Z~ ext remi ty 4.
The nozzle Z0 a~so conprises an external sleeYe S ~hich has a ter~ina~ ~a~l 30 traversed by circumferentially spaced holes 11, an internal annular part 26 and an externa~ latcra~
~all 31 ~hich car. be scre~ed on and unscre~ed from said internal casing 1. The sleeve 5 defines ~ith s~id internal 2i~181~3 casing 1 a delivery chamber 6 of the liquid co~unicat;ng ~ith said radial openings 3 By scre~ing and unscreuing the sleeve 5 closing and opening is effected of a central passage 7 for the outflo~ of the liquid ~hich is defined bet~een said internal annular uall 26 of the sleeve and a terminal appendix Z7, substantiaLly in the shape of a mushroom, of the internal casing 1 The closed position is defined by thc engage~ent of said internal annular ~all 26 of the sleeve 5 ~ith an annular gas~et 35 applied to the base of the terminal appendix Z7 of the interna~ casing 1 Bet~een the internal casing 1 and the external ~ateral ~all 31 of the sleeve there is acccmplished a further hydraulic seal by means of an annular gasket 37 on the termina~ uall 3û of the sleeve S there is plac~d a cap 10 formed by a lateral annular ~all 39 rotatably coupled to the external lateral ~alL 31 of the sleeve S and a front annular ~all 39 traversed by a p~urality of circumferentially spaced holes 9 ~hich can be aligned or o~her~ise ~ith said holes 11 of the front annular ~all 30 of the s~e~ve 5 for their opening or closing in relation to the angular posittan of the cap 10 As can be seen in Fig.s 1, 3 and 6, the rotation of the cap 10 is allo~ed bet~een t~o extre~e angular positions defined by the engagement of an axial protuberance 41 of the latera~ ~all 38 of the cap 10 ~ith a lateraL protuberance 4~ of the external lateral ~aLl 31 of the sleeve 5.
As shown in Fig.s 4, 5, the holes 9 on the annu~ar ~a~l 39 Z~1~81~3 of the cap 10 are surrounded by divergent ~alls 42 ~hich def;ne a V-shaped channel for the direction of the individual j~ts iss~ing from the holes Fig s 2, 3, 7, 8, sho~ the system for connecting the nozzle ZQ to a quick-action union 44 for a large-diameter fLexible pipe accomplished according to the patent application No 19494 A/89 filed on 20 Fe~ruary 1989 in the name of the sane Applicant Said union 44 co~prises a tubular casing 52, ~hich can be fastened to a flexible pipe 70 by ~eans ot a ring nut 50 ~hich is scre~ed onto a threaded part 53 to hold the flexib~e pipe, fitted over an extremity, not sho~n, of said tubu(ar casing 52 Said union 44 is endo~ed ~ith an internal lateraL ~all 37 in ~hich there is obtained a plurality of axial grooves Z3, circumferentially spaced, each of ~hich has at its side a respective seat 60 for receiving, by an axial s~iding action and subsequent rotation, a rib 22 forming part of a pLurality of circumferentially spac~d ribs, pro~r~ding in a radial direction opposite the extremity 2 of the internal casing 1.
In particu~ar each o~ the ribs Z2 is heLd inside its respective seat 60 by the engagement of one extremity 64 of the respective rib 22 against a shouLder 65 of the respective tera~ ~a~ 6Q
To lock the ribs 22 inside seats 60 the nozzle 2Q is provided ~ith a slidable tang 25 to ~hich is attached a control 2~ 3 cursor 24 and ~hich can be inserted into the ribs Z3 of union 44 to lock the nozz~e Z0 in the rotated position.
n order to use the nozz~e 20 it is first oS al( necessary to connect the nozz~e 20 to the respective union 44. Such operation occurs in a ~ay ~no~n in itself of the above patent application No 19494 A/89.
For the ~reation of the main delivery jet it is necessary to rotate the external sleeve 5 round the internal tubular casing 1 so as to cause, fo~ouing the ~ove~ent of the interna~
tubular ~all 26 of the s~eeve S a~ay fron the terminal appendix 27 of the internal casing 1, the opening of the c~ntra~
de~ivery passage 7; in relation to said opening the length and the conformation of the main outflo~ deli~ery jet is adjusted.
It is also possib~e to create a p~ural;ty oS secondary reduced-pressure jets surrounding said 0ain jet. For this purpose it is necessary to rotate the cap 10 in order to align the holes 9 on the front annular ~all 39 ~ith the correspondin~
holes 11 of the front annular ~all 30 of the sleeve 5.
~f desired, the secondary ~e~s can replace the ~ain jet by executlng the closing of the central passage 7 by rotation of slee~e 5.
* * * * *
D E S C R I P T I Q N
The present invention relates to a noz~le, particu~arly for large-diameter pipes and thus a large ~ater de~ivery.
~ he use is kno~n of irrigation no2zles for normal ptpes having a diameter of half an inch up to a diameter equaL to three quarters of an inch.
Such nozzles are married at one extre~ity ~ith a union ~hich is in turn connected to the pipe at the other extremity.
Such coupling bet~een the nozzle and the union is generally made ~ith a quick-action coupling of a female part, in particular the union, ~ith a ~ale part, the nozzle.
Nozz~es of the kno~n type inc~ude an inner tubular casing ~hich can be supplied ~ith an irrigation li~uid as one extremity and provided ~ith radial openings for the outflo~ of the liquid at the other extremity, an externaL slee~c def;nin~
~ith said internal casing a delivery cha~ber of the ~iquid communtcating ~ith said cpenings and which can be scre~ed on and unscre~ed from the same 1n order to clsse and open in an adj~stab~e ~ay a c~ntra~ out~lo~ passage.
Such ~no~n solut1ons are not, ho~ever, suitab~e to be associated ~ith large-diameter feed p;pes and thus of large ~ater delivery. In such cases, ;ndeed, according to the position of the adjustment sleeve, either a very long water jet 2~-~181~3 is produc~d Jith ~hich it is possib~e to ~ater only a far point on ~hich the jet fa~s or a circular short-range fan-shaped jet is generated ~hich is characterized by a high out~et pressur~
which cannot but damage any plants or flo~ers to be irrigated.
The object o~ the present invention is that ~f accomplishing an irrigation nozzle ~hich is particularly suitable for use ~ith large-diameter pipes ~ithout giving rise to the above mentioned dra~backs According to the invention such object is attained by means of an irriga~ion nozzle, particularlr for large-diameter pipes, comprising first means for the creation o~ a ~ain iet having variable ~ength and conformation, said first means comprisin~ an interna~ tubul3r casing ~hich can be supplied ~ith an irrigation liquid at one extremity and provided ~ith radial openings for the ou~flou of the liquid at thê otner extre~ity and an external sleeve defining ~ith said internal casing a delivery chamber of the liquid communicating ~ith said openings and ~h~ch can be scre~ed on and unscre~ed fron the same to close and open 1n an adjustable ~ay a central outflo~
passage, characterized in that it aLso comprises sccont means for the creation of a plurality of secondary jets at reduced pressure round the c;rcum~erence ot said main jet said seccnd means comprising a termina~ ~a~ of said sLeeve provided ~ith a plurality of circumferentia~ly spaced ho~es and a cap rotatably superimposed over said termina~ ~a~ ot ~he slecve and in turn ~ ~18~3 provided ~ith a simiLar plurality ot c;rcumferentiaLLy spaced holes ~hich can be aligned or other~ise ~ith said holes of the terminaL ~all of the sleeve for their opening or closing, respectively, in reLation to the ang~Lar position of the cap It appears evident that in this ~ay the nozzle adds to the possibility of having a long lo~-pressure main jet or, as an alternative, a circular high-pressure jet in the shape of a fan as for the traditionaL nozzles, also that o~ produci~g in combination ~ith or as aLternative to said main jet a plurality of secondary low-pressure jets, even if the delivery is high, ~hich in the case of large-diameter pipes for~ an irrigation pattern having a comparatively limited force so as to avoid damage to plants and flo~ers to be irrigated It is thus possible to irrigàte at a distance ~hile, at ~he same time, also ~atering areas ~hich are nearer to the point of outfLo~ of the main jet or it is possibLe to provide for the possibility of ~atering ~;thout any damage extremely near areas such as flo~er-beds, etc The features of the present invent;on shall be made ~o~e 2D ev;dent by the foLlo~ing detailed descr;pt;on of a preterred embod;ment, illustrated as a non~ iting exa~pLe in the encLosed dra~ings, ~herein:
Fig~ 1 is a Lon~itudinaL cross-sectionaL v;c~ of the noz7le in the closed position, F;g. 2 sho~s the connect;on of the nozzLe of Fig. 1 ~;th a 2`~ 3 su;table quick-action union;
Fig. 3 sha~s a longitudinal cross-sectional vie~ of the nozzle applied to the union and adjusted to the open position;
Fig. 4 is a vie~ of the nozzle from the left hand side in the position of Fig. 3;
Fig S sha~s a detail in cross-section taken along the line V-V of Fig. 4;
Fig. 6 is a transversal cross-sectional vie~ of the nozzle taken a~ong the line VI-VI of Fig. 1;
Fig. 7 is a transversal cross-sec~ional vieu of the connection area of the nozzle to the union taken along the line VII-VII of Fig. 3;
Fig. 8 sho~s a detail of the connection area seen in a cross-sectional vie~ taken along the line VIII-VIII of Fig. 3.
With reference to the dra~ings, and in particular to Fig.s 1 and 3, the ;rrigation nozzle indicated as a ~hole ~ith 20 comprises an internal tubular casing 1 ~hich can be supplied ~;th an irr;gation liquid at one extremity 2 and provided ~ith radial openings 3 for the outflou of the liquid at the other Z~ ext remi ty 4.
The nozzle Z0 a~so conprises an external sleeYe S ~hich has a ter~ina~ ~a~l 30 traversed by circumferentially spaced holes 11, an internal annular part 26 and an externa~ latcra~
~all 31 ~hich car. be scre~ed on and unscre~ed from said internal casing 1. The sleeve 5 defines ~ith s~id internal 2i~181~3 casing 1 a delivery chamber 6 of the liquid co~unicat;ng ~ith said radial openings 3 By scre~ing and unscreuing the sleeve 5 closing and opening is effected of a central passage 7 for the outflo~ of the liquid ~hich is defined bet~een said internal annular uall 26 of the sleeve and a terminal appendix Z7, substantiaLly in the shape of a mushroom, of the internal casing 1 The closed position is defined by thc engage~ent of said internal annular ~all 26 of the sleeve 5 ~ith an annular gas~et 35 applied to the base of the terminal appendix Z7 of the interna~ casing 1 Bet~een the internal casing 1 and the external ~ateral ~all 31 of the sleeve there is acccmplished a further hydraulic seal by means of an annular gasket 37 on the termina~ uall 3û of the sleeve S there is plac~d a cap 10 formed by a lateral annular ~all 39 rotatably coupled to the external lateral ~alL 31 of the sleeve S and a front annular ~all 39 traversed by a p~urality of circumferentially spaced holes 9 ~hich can be aligned or o~her~ise ~ith said holes 11 of the front annular ~all 30 of the s~e~ve 5 for their opening or closing in relation to the angular posittan of the cap 10 As can be seen in Fig.s 1, 3 and 6, the rotation of the cap 10 is allo~ed bet~een t~o extre~e angular positions defined by the engagement of an axial protuberance 41 of the latera~ ~all 38 of the cap 10 ~ith a lateraL protuberance 4~ of the external lateral ~aLl 31 of the sleeve 5.
As shown in Fig.s 4, 5, the holes 9 on the annu~ar ~a~l 39 Z~1~81~3 of the cap 10 are surrounded by divergent ~alls 42 ~hich def;ne a V-shaped channel for the direction of the individual j~ts iss~ing from the holes Fig s 2, 3, 7, 8, sho~ the system for connecting the nozzle ZQ to a quick-action union 44 for a large-diameter fLexible pipe accomplished according to the patent application No 19494 A/89 filed on 20 Fe~ruary 1989 in the name of the sane Applicant Said union 44 co~prises a tubular casing 52, ~hich can be fastened to a flexible pipe 70 by ~eans ot a ring nut 50 ~hich is scre~ed onto a threaded part 53 to hold the flexib~e pipe, fitted over an extremity, not sho~n, of said tubu(ar casing 52 Said union 44 is endo~ed ~ith an internal lateraL ~all 37 in ~hich there is obtained a plurality of axial grooves Z3, circumferentially spaced, each of ~hich has at its side a respective seat 60 for receiving, by an axial s~iding action and subsequent rotation, a rib 22 forming part of a pLurality of circumferentially spac~d ribs, pro~r~ding in a radial direction opposite the extremity 2 of the internal casing 1.
In particu~ar each o~ the ribs Z2 is heLd inside its respective seat 60 by the engagement of one extremity 64 of the respective rib 22 against a shouLder 65 of the respective tera~ ~a~ 6Q
To lock the ribs 22 inside seats 60 the nozzle 2Q is provided ~ith a slidable tang 25 to ~hich is attached a control 2~ 3 cursor 24 and ~hich can be inserted into the ribs Z3 of union 44 to lock the nozz~e Z0 in the rotated position.
n order to use the nozz~e 20 it is first oS al( necessary to connect the nozz~e 20 to the respective union 44. Such operation occurs in a ~ay ~no~n in itself of the above patent application No 19494 A/89.
For the ~reation of the main delivery jet it is necessary to rotate the external sleeve 5 round the internal tubular casing 1 so as to cause, fo~ouing the ~ove~ent of the interna~
tubular ~all 26 of the s~eeve S a~ay fron the terminal appendix 27 of the internal casing 1, the opening of the c~ntra~
de~ivery passage 7; in relation to said opening the length and the conformation of the main outflo~ deli~ery jet is adjusted.
It is also possib~e to create a p~ural;ty oS secondary reduced-pressure jets surrounding said 0ain jet. For this purpose it is necessary to rotate the cap 10 in order to align the holes 9 on the front annular ~all 39 ~ith the correspondin~
holes 11 of the front annular ~all 30 of the sleeve 5.
~f desired, the secondary ~e~s can replace the ~ain jet by executlng the closing of the central passage 7 by rotation of slee~e 5.
Claims (5)
1. Irrigation nozzle, particularly for large-diameter pipes, comprising first means for the creation of a main jet having variable length and conformation, said first means comprising an internal tubular casing which can be supplied with an irrigation liquid at one extremity and provided with radial openings for the outflow of the liquid at the other extremity and an external sleeve defining with said internal casing a delivery chamber of the liquid communicating with said openings and which can be screwed on and unscrewed from the same to close and open in an adjustable way a central outflow passage, characterized in that it also comprises second means for the creation of a plurality of secondary jets at reduced pressure round the circumference of said main jet, said second means comprising a terminal wall of said sleeve provided with a plurality of circumferentially spaced holes and a cap rotatably superimposed over said terminal wall of the sleeve and in turn provided with a similar plurality of circumferentially spaced holes which can be aligned or otherwise with said holes of the terminal wall of the sleeve for their opening or closing, respectively, in relation to the angular position of the cap.
2. Irrigation nozzle according to claim 1, characterized in that said sleeve has an external lateral wall which can be screwed on and unscrewed from said internal casing, there being provided hydraulic seating means situated between said external Lateral wall and said internal casing.
3. Irrigation nozzle according to claim 2, characterized in that said sleeve also has an internal tubular wall which co-operates with a mushroom-shaped terminal appendix of the internal casing to define said central passage for the outflow of the liquid
4. Irrigation nozzle according to claim 2, characterized in that said cap has an annular lateral wall with an axially-protruding sector suitable for co-operating with a radially-protruding sector of the external lateral wall of the sleeve to define two extreme angular positions of said cap for the opening or closing of the holes on the terminal wall of the sleeve.
5. Irrigation nozzle according to claim 1, characterized in that said extremity of the internal casing is provided with ribs, circumferentially spaced, protruding in a radial direction, which can be coupled, respectively, with corresponding axial grooves, circumferentially spaced, obtained in the internal lateral wall of a union, each of which has at its side a respective seat for receiving, by an axial sliding action and subsequent rotation, a respective rib, said nozzle being provided with a slidable tang which cam be inserted in one of the grooves of the union to lock the nozzle in the rotated position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT8920788A IT1229447B (en) | 1989-06-05 | 1989-06-05 | Irrigation nozzle, particularly for large-diameter pipes |
| IT20788A/89 | 1989-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2018183A1 true CA2018183A1 (en) | 1990-12-05 |
Family
ID=11172080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002018183A Abandoned CA2018183A1 (en) | 1989-06-05 | 1990-06-04 | Irrigation nozzle, particularly for large - diameter pipes |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0401887B1 (en) |
| JP (1) | JPH0321360A (en) |
| KR (1) | KR0125797B1 (en) |
| AT (1) | ATE110009T1 (en) |
| AU (1) | AU633574B2 (en) |
| CA (1) | CA2018183A1 (en) |
| DE (1) | DE69011585T2 (en) |
| ES (1) | ES2062298T3 (en) |
| IT (1) | IT1229447B (en) |
| NZ (1) | NZ233769A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100555586B1 (en) * | 2003-04-30 | 2006-03-03 | 강영수 | Simple Golf Putting Driving Range |
| CN104768655B (en) | 2012-10-29 | 2016-03-09 | 住友理工株式会社 | Spray gun |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU442135B2 (en) * | 1969-10-01 | 1973-10-31 | JOHN LLOYD LIGHT and DAVID JAMES HENDRY | Irrigation hose |
| US4785998A (en) * | 1986-06-09 | 1988-11-22 | Toshio Takagi | Water spraying nozzle |
| AU606214B2 (en) * | 1988-09-29 | 1991-01-31 | Hansen Developments Limited | A water spray fitting |
-
1989
- 1989-06-05 IT IT8920788A patent/IT1229447B/en active
-
1990
- 1990-05-18 AT AT90201267T patent/ATE110009T1/en not_active IP Right Cessation
- 1990-05-18 EP EP90201267A patent/EP0401887B1/en not_active Expired - Lifetime
- 1990-05-18 ES ES90201267T patent/ES2062298T3/en not_active Expired - Lifetime
- 1990-05-18 DE DE69011585T patent/DE69011585T2/en not_active Expired - Fee Related
- 1990-05-22 NZ NZ233769A patent/NZ233769A/en unknown
- 1990-05-24 AU AU55917/90A patent/AU633574B2/en not_active Ceased
- 1990-06-04 KR KR1019900008210A patent/KR0125797B1/en not_active IP Right Cessation
- 1990-06-04 CA CA002018183A patent/CA2018183A1/en not_active Abandoned
- 1990-06-05 JP JP2145551A patent/JPH0321360A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE69011585D1 (en) | 1994-09-22 |
| EP0401887B1 (en) | 1994-08-17 |
| KR0125797B1 (en) | 1997-12-18 |
| IT8920788A0 (en) | 1989-06-05 |
| ATE110009T1 (en) | 1994-09-15 |
| AU5591790A (en) | 1990-12-06 |
| IT1229447B (en) | 1991-08-08 |
| KR910000237A (en) | 1991-01-29 |
| EP0401887A1 (en) | 1990-12-12 |
| JPH0321360A (en) | 1991-01-30 |
| NZ233769A (en) | 1991-11-26 |
| DE69011585T2 (en) | 1995-03-23 |
| AU633574B2 (en) | 1993-02-04 |
| ES2062298T3 (en) | 1994-12-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |